GSK2643943A is primarily utilized in the field of medical research, particularly in the study of cancer therapies. It functions as an inhibitor targeting specific enzymes or proteins involved in cancer cell proliferation. Researchers employ this compound to investigate its potential in disrupting signaling pathways that contribute to tumor growth and survival. Its application extends to preclinical studies, where it is tested for efficacy and safety in various cancer models. Additionally, GSK2643943A is used to explore combination therapies, aiming to enhance the effectiveness of existing treatments. This compound plays a crucial role in advancing the understanding of molecular mechanisms in oncology and in the development of novel therapeutic strategies.